IT1015054B - Processo per la rigenerazione di acido solforico - Google Patents

Processo per la rigenerazione di acido solforico

Info

Publication number: IT1015054B
Authority: IT; Italy
Prior art keywords: regeneration; sulfuric acid; sulfuric; acid
Prior art date: 1973-06-14

Application number

IT23961/74A

Other languages

English (en)

Original Assignee

Hoechst Ag

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1973-06-14

Filing date

1974-06-12

Publication date

1977-05-10

1974-06-12 Application filed by Hoechst Ag filed Critical Hoechst Ag

1977-05-10 Application granted granted Critical

1977-05-10 Publication of IT1015054B publication Critical patent/IT1015054B/it

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/88—Concentration of sulfuric acid

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

IT23961/74A 1973-06-14 1974-06-12 Processo per la rigenerazione di acido solforico IT1015054B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2330281A DE2330281A1 (de)	1973-06-14	1973-06-14	Verfahren zur regenerierung von schwefelsaeure

Publications (1)

Publication Number	Publication Date
IT1015054B true IT1015054B (it)	1977-05-10

Family

ID=5883985

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT23961/74A IT1015054B (it)	1973-06-14	1974-06-12	Processo per la rigenerazione di acido solforico

Country Status (11)

Country	Link
US (1)	US4010240A (it)
JP (1)	JPS5035094A (it)
BE (1)	BE816367A (it)
BR (1)	BR7404850D0 (it)
CH (1)	CH601102A5 (it)
DE (1)	DE2330281A1 (it)
DK (1)	DK317774A (it)
FR (1)	FR2233280B1 (it)
GB (1)	GB1479763A (it)
IN (1)	IN144570B (it)
IT (1)	IT1015054B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2616768C3 (de) *	1976-04-15	1978-12-07	Hoechst Ag, 6000 Frankfurt	Verfahren zur Regeneration von Abfallschwefelsäure
DE2632989A1 (de) *	1976-07-22	1978-02-02	Hoechst Ag	Verfahren zum regenerieren von schwefelsaeure
DE2653088C2 (de) *	1976-11-23	1978-10-19	Hoechst Ag, 6000 Frankfurt	Verfahren zur Regeneration von Abfallschwefelsäure
DE2656236C3 (de) *	1976-12-11	1980-11-06	Hoechst Ag, 6000 Frankfurt	Verfahren zum Regenerieren von Abfallschwefelsäure
US4154791A (en) *	1977-12-27	1979-05-15	Allied Chemical Corporation	Inhibition of corrosive attack by sulfuric acid on carbon steel
US4197139A (en) *	1978-08-23	1980-04-08	Hjersted Norman B	Process for the reclamation of acid from spent pickle liquor
DE2928598C2 (de) *	1979-07-14	1984-01-19	Hoechst Ag, 6230 Frankfurt	Verfahren zur Reinigung fluoridhaltiger Abfallschwefelsäure
US4828660A (en) *	1986-10-06	1989-05-09	Athens Corporation	Method and apparatus for the continuous on-site chemical reprocessing of ultrapure liquids
US5114699A (en) *	1989-04-12	1992-05-19	Freeport-Mcmoran Resource Partners	Spent alkylation acid treatment process
US5840436A (en) *	1992-06-08	1998-11-24	Ngk Insulators, Ltd.	Spalling-resistant, creep-resistant and oxidation-resistant setters
US7825082B2 (en)	2008-07-11	2010-11-02	S&B Worldwide Corporation	Highly protonated, supercharged, low pH, non-corrosive composition

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE299774C (it) *
DE1074019B (de) *		1960-01-28	Carl Buschm^ Hamburg Bergedorf Willy	Verfahren zur Reinigung und Konzentration von Ab fallschwefelsaure
US1545498A (en) *	1924-05-16	1925-07-14	Chemical Products Corp	Method of cleaning steel and imparting rust-inhibitive properties thereto and solution therefor
US1795995A (en) *	1927-06-17	1931-03-10	Busching Willi	Process for the high concentration of impure sulphuric acid treated preliminarily in a dephlegmator
DE651048C (de) *	1933-05-31	1937-10-06	E H Harry Pauling Dipl Ing Dr	Verfahren zur Denitrierung nitroser Schwefelsaeure
US2049517A (en) *	1934-06-06	1936-08-04	American Chem Paint Co	Method of and material for inhibiting or retarding acid corrosion of ferrous metals
US2078088A (en) *	1935-11-22	1937-04-20	Mantius	Process of recovering sulphuric acid from sulphuric acid solutions of sulphates
US2134909A (en) *	1936-01-14	1938-11-01	Nooij Jan Cornelis De	Process for regenerating waste sulphuric acid by oxidizing impurities
US2313910A (en) *	1940-03-16	1943-03-16	Standard Oil Dev Co	Purification of recovered sulphuric acid
DK66665C (da) *	1942-05-01	1948-04-26	Harry Pauling	Kedel til Koncentrering af Vædsker, især Syrer med højt Kogepunkt, f. Eks. Svovlsyre.
US2513131A (en) *	1944-11-27	1950-06-27	Standard Oil Dev Co	Method of inhibiting the corrosive effect of sulfuric acid
US2837474A (en) *	1954-04-07	1958-06-03	Groves H Cartledge	Corrosion inhibition
US2863780A (en) *	1957-03-04	1958-12-09	West Virginia Pulp & Paper Co	Inhibition of corrosion of iron in acids
US2981643A (en) *	1958-02-19	1961-04-25	Russell D Baybarz	Process for descaling and decontaminating metals
US3022133A (en) *	1959-04-23	1962-02-20	Hagan Chemicals & Controls Inc	Methods of inhibiting the pitting of iron and steel
DE1143492B (de) *	1959-08-13	1963-02-14	Kestner App Evaporateurs	Verfahren zur stufenweisen Konzentration von Schwefelsaeure
DE1233368B (de) *	1962-08-13	1967-02-02	Heraeus Schott Quarzschmelze	Verfahren zur kontinuierlichen Destillation von Schwefelsaeure in Apparaturen aus keramischen Werkstoffen
US3415754A (en) *	1966-02-28	1968-12-10	Dow Chemical Co	Corrosion inhibitors
US3713786A (en) *	1971-12-06	1973-01-30	New Jersey Zinc Co	Evaporative sulfuric acid recovery from sulfuric acids containing sulfates

1973
- 1973-06-14 DE DE2330281A patent/DE2330281A1/de active Pending
1974
- 1974-06-04 IN IN1213/CAL/74A patent/IN144570B/en unknown
- 1974-06-11 CH CH797174A patent/CH601102A5/xx not_active IP Right Cessation
- 1974-06-12 JP JP49066123A patent/JPS5035094A/ja active Pending
- 1974-06-12 US US05/478,631 patent/US4010240A/en not_active Expired - Lifetime
- 1974-06-12 BR BR4850/74A patent/BR7404850D0/pt unknown
- 1974-06-12 IT IT23961/74A patent/IT1015054B/it active
- 1974-06-13 DK DK317774A patent/DK317774A/da not_active Application Discontinuation
- 1974-06-13 GB GB26266/74A patent/GB1479763A/en not_active Expired
- 1974-06-14 FR FR7420702A patent/FR2233280B1/fr not_active Expired
- 1974-06-14 BE BE145452A patent/BE816367A/xx unknown

Also Published As

Publication number	Publication date
JPS5035094A (it)	1975-04-03
US4010240A (en)	1977-03-01
BE816367A (fr)	1974-12-16
BR7404850D0 (pt)	1975-01-21
FR2233280B1 (it)	1977-10-07
DK317774A (it)	1975-02-17
FR2233280A1 (it)	1975-01-10
GB1479763A (en)	1977-07-13
DE2330281A1 (de)	1975-01-09
CH601102A5 (it)	1978-06-30
IN144570B (it)	1978-05-13

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